The West Yorkshire Combined Authority (WYCA) is the combined authority for West Yorkshire in England. It was established by statutory instrument under the Local Democracy, Economic Development and Construction Act 2009 on 1 April 2014. It is a strategic authority with powers over transport, economic development and regeneration. The metro-mayor of the authority is Tracy Brabin.

West Yorkshire is a metropolitan and ceremonial county in the Yorkshire and the Humber region of England. It borders North Yorkshire to the north and east, South Yorkshire and Derbyshire to the south, Greater Manchester to the south-west, and Lancashire to the west. The city of Leeds is the largest settlement.